A Planar Suspended Multiband Yagi Antenna for WLAN, LTE, and 5G Wireless Applications

A planar suspended multiband Yagi antenna suitable for WLAN, LTE, and 5G wireless applications has been presented. The antenna presented here has been optimized to offer operating bands (S11 < −10 dB) centered at 2.05 GHz, 2.75 GHz, 3.8 GHz, and 6.5 GHz. The proposed antenna has good front to back (F/B) ratios of 14 dB, 13 dB, 12 dB, and 19 dB corresponding to four resonant frequencies. Similarly, the corresponding gain values are 2 dB, 1.3 dB, 3.1 dB, and 3.3 dB. A prototype antenna was fabricated and tested. Except the first resonance which is a single frequency, the other three operating bands offer impedance bandwidths of 3.98% (2.71 GHz–2.82 GHz), 5.48% (3.73 GHz–3.94 GHz), and 19.27% (5.93 GHz–7.195 GHz). Measured results agree fairly with the simulated characteristics of the proposed antenna. © 2022, Electromagnetics Academy. All rights reserved.